| Study on arc-ultrasonic TIG welding of titanium alloy |
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| 作者姓名： | 周荣林 郭德伦 李从卿 张银根 |
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| 作者单位： | [1]BeijingAerospaceMachineryTechnologyResearchInstitute,Beijing,100024 [2]BeijingAerospaceMachineryTechnologyResearchInstitute,Beijing,100024 [3]DaGangQilManageOffice,Tianjin,300020 |
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| 摘 要： | TCA alloy was welded by conventional TIG welding and arc-ultrasonic TIG welding respectively. The microstructure of joint was analyzed by means of optical-microscope, scanning electron microscope in order to study the relationship between the macro-properties of joint and the microstructure. The results show that the joints were all welded successfully by conventional TIG welding and arc-ultrasonic TIG welding. With the increment of ultrasonic frequency and activated voltage, the width of joint became narrow step by step. The microstructure became more and more fine and was inclined to equiaxed crystal. Moreover, the dendrite depredation was not observed obviously. The properties of welded joint were improved markedly compared with that of conventional TIG welding.
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| 关 键 词： | 电弧-超声波 TIG焊接法 钛合金 微观结构 X-射线照相检测 |
Study on arc-ultrasonic TIG welding of titanium alloy |
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| Zhou Ronglin,Guo Delun and Li Congqing,Beijing Aerospace Machinery Technology Research Institute,Beijing,. Zhang Yingen,Da Gang Qil Manage Office,Tianjin,..Study on arc-ultrasonic TIG welding of titanium alloy[J].China Welding,2004,13(2):156-158. |
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| Authors: | Zhou Ronglin Guo Delun and Li Congqing Beijing Aerospace Machinery Technology Research Institute Beijing Zhang Yingen Da Gang Qil Manage Office Tianjin |
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| Affiliation: | 1. Beijing Aerospace Machinery Technology Research Institute,Beijing,100024
2. Da Gang Qil Manage Office,Tianjin,300020 |
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| Abstract: | TC4 alloy was welded by conventional TIG welding and arc-ultrasonic TIG welding respectively. The microstructure of joint was analyzed by means of optical-microscope, scanning electron microscope in order to study the relationship between the macro-properties of joint and the microstructure. The results show that the joints were all welded successfully by conventional TIG welding and arc-ultrasonic TIG welding. With the increment of ultrasonic frequency and activated voltage, the width of joint became narrow step by step. The microstructure became more and more fine and was inclined to equiaxed crystal. Moreover, the dendrite depredation was not observed obviously. The properties of welded joint were improved markedly compared with that of conventional TIG welding. |
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| Keywords: | arc-ultrasonic TIG welding titanium alloy |
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